c# - WebApi receiving model with references (Not attached to Context)

Question

I am trying to pass a complex type to WebApi having this on my ApiController :

    [HttpPost]
    public void DoSomeCrud(JObject data)
    {
        ComplexModel item = data.ToObject<ComplexModel>();
        // Do some logic here
    }

My issue is that one of the properties I have inside my ComplexModel is an Entity Framework entity. I don't have problems passing that entity if detached, however as soon as I get that entity from DbContext the model cannot be passed to WebApi as expected.

My question is.. : Is there anyway to detach my entity preserving my references to foreign keys ? Because I need those references on the WebApi side.

Thanks

Answer 1

使用实体框架中的模型作为 Web Api 的数据传输对象 (Dto) 并不是最佳实践，因为您可能会遇到序列化问题，因为来自 EF 的模型实际上是支持延迟加载和导航属性的代理（如果您不分离它） ）。

最佳实践是，为了关注点分离，您应该定义自己的 Dto 对象，而不是直接从 EF 使用实体模型。

简单的例子，如果你有Customer实体，你也应该有CustomerDto实体，它可以投射Customer你想要的任何属性。